Final answer:
The correct answer is option C) Samuel Gompers.
Step-by-step explanation:
The individual who became particularly popular with labor unions after the strikes is Samuel Gompers. As the founder of the American Federation of Labor (AFL), Gompers helped to unify various skilled labor unions with the goal of achieving better wages and working conditions. His leadership in the union movement, especially the emphasis on pushing for a closed shop and the use of strikes as a main tactic, led to numerous successes.
These successes included the establishment of 8 hour workdays and increased pay for the union members. By 1914, the AFL had grown to over 2 million members, demonstrating Gompers' significant influence and popularity within the labor movement.